In brief: 2SC hydraulic hose is generally the more compact choice, with a smaller outer diameter and a tighter minimum bend radius than 2SN of the same nominal bore. Both constructions use two wire braids, but 2SN is covered by EN 853 and 2SC by EN 857; their pressure ratings must be checked by hose size and product specification rather than assumed to be identical. For example, commonly published size charts show a 12 mm nominal-bore 2SN with an outer diameter of about 22.2 mm and a minimum bend radius of 180 mm, compared with about 19.8 mm and 130 mm for 2SC. I recommend checking the exact hose and fitting data before selecting either type.
These are typical design tendencies, not guarantees for every product. Values can vary by size, manufacturer, and product series, so the hose datasheet and applicable specification should govern procurement and installation.
2SN is a hydraulic hose type associated with EN 853. It has a synthetic-rubber inner tube, two high-tensile steel-wire braid reinforcement layers, and an outer cover designed for hydraulic service. The construction is used in hydraulic lines where a two-braid hose is specified, but its pressure and environmental limits depend on the hose size and the manufacturer’s product data.
2SC is associated with EN 857 and also uses two wire-braid reinforcement layers. It is commonly designed with a more compact profile than 2SN, which can help when routing space is restricted. Compact construction does not mean that every 2SC hose can replace every 2SN hose: buyers still need to verify pressure rating, dimensions, fittings, and operating conditions.
| Comparison point | 2SN | 2SC |
|---|---|---|
| Associated specification | EN 853 | EN 857 |
| Reinforcement | Two steel-wire braids | Two steel-wire braids |
| Typical design emphasis | Conventional two-braid hose construction | Compact dimensions and tighter routing |
| Outer diameter and bend radius | Often larger and requires more bend clearance | Often smaller and allows a tighter minimum bend |
| Pressure selection | Check the product rating for the specific size | Check the product rating for the specific size |
The table describes common design differences, not a universal interchangeability rule. Both hose types are available in multiple nominal bores, and a comparison is meaningful only when the bore and product specifications are aligned. A matching nominal size alone does not confirm that two assemblies have the same pressure capacity or fit the same installation.
Minimum bend radius is the smallest permitted radius for a hose bend under the conditions defined by its manufacturer. It is measured from the inside of the bend, not as the full diameter of the loop. Bending below the stated limit can impair hose performance or shorten service life, so installers should follow the product instructions rather than forcing a hose into a tight route.
As an illustrative comparison, commonly published charts for 12 mm nominal-bore hoses list a minimum bend radius of about 180 mm for 2SN and about 130 mm for 2SC. That is a difference of 50 mm in the specified bend radius for those example products. Always confirm the values on the actual manufacturer datasheets, since product ranges and published dimensions may differ.
Consider 2SC when a machine layout has short routing distances, closely spaced components, or limited clearance around moving equipment. Check the complete route, including bends near fittings, and allow enough length to prevent tension, twisting, or kinking. If the hose moves during operation, evaluate its movement and routing against the manufacturer’s guidance rather than relying on static clearance alone.
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Outer diameter affects whether the hose can pass through clamps, guards, openings, and tightly grouped hose bundles. In typical published dimensions for a 12 mm nominal bore, 2SN is about 22.2 mm in outer diameter and 2SC is about 19.8 mm. In this example, 2SC is 2.4 mm smaller across the outside diameter, which may be useful where clearance is limited.
These figures are examples, not fixed dimensions for all products. Before ordering, compare the supplier’s stated outside diameter with the available space and the clamp or fitting design. Also check whether protective sleeves, abrasion guards, or other coverings will increase the installed diameter.
Working pressure is a product- and size-specific rating. It is not the same as burst pressure, and a hose should not be selected by treating a burst value as its allowable continuous operating pressure. Published charts commonly list approximately 280 bar working pressure for some 12 mm-bore 2SN products and approximately 275 bar for some 12 mm-bore 2SC products, but these are illustrative values, not a substitute for the selected hose’s datasheet.
Pressure requirements should account for the system’s specified operating conditions, including pressure peaks where relevant. Confirm the hose rating, fitting and assembly rating, and any applicable equipment requirements together. The assembled hose should not be treated as having a higher allowable pressure than its lowest-rated component.
A frequent mistake is assuming that 2SC is always a direct replacement for 2SN because both have two wire braids. Their associated standards and product dimensions differ, so substitution should be approved against the equipment requirements. Another mistake is comparing pressure figures from different bore sizes or treating a typical chart value as a guaranteed rating for every supplier’s product.
Buyers can also overlook bend geometry: a route that looks spacious on a drawing may still force a bend below the hose’s specified minimum radius near a port or clamp. Provide the supplier with the nominal bore, required pressure, working temperature, fluid, hose length, fitting details, and installation constraints. This gives the supplier a clearer basis for checking product suitability.
Choose 2SC when compact outer dimensions and a tighter permitted bend are valuable, and its verified pressure and service limits meet the application. Choose 2SN when the equipment specification calls for EN 853 2SN or when its product dimensions and ratings are the appropriate match. In either case, the final decision should be based on the selected manufacturer’s datasheet and the complete hose assembly requirements—not on the type code alone.
At Hengshui Xinchi Hose Manufacturing Co., Ltd., we support B2B buyers with hydraulic hose selection by reviewing application details such as size, pressure, routing, and fitting requirements. Share your specification or installation constraints with our team to discuss a suitable 2SN or 2SC option and confirm the relevant product data before placing an order.
Contact us to discuss your requirements of 2SN vs 2SC Hydraulic Hose: Bend Radius, Outer Diameter, and Pressure. Our experienced sales team can help you identify the options that best suit your needs.